rear demister

The light comes on but the rear demister doesnt work ...from what i can gather its a common problem on lagunas ...does anyone know what i need to do to fix this this problem? please ...its driving me crazy

checked the connections and they all plugged in , fuses in the fuse box are all fine .

anyone ?

You will need to get a meter to check the connectivity and test for voltage at the screen. It could be a faulty earth, broken wire somewhere between the screen/relay/fuse/switch.

ER

You will need to bypass the plug in the luggage compartment. The plug 'plugs' in ok, but for some reason the heater wires don't make good contact. Locate the heater wire BEFORE the plug and make a connection from it to the same wire 'AFTER' the plug (these are both different colour as I recall but obviously connected to the same pin on the two halves of the plug). Should work fine after that.

does anyone know where the relay switch is located for the rear demister ? can hear a click coming from somewhere near the fuse box under the steering wheel when i push the rear demister button ..is it down there somewhere ?

Yep, its down there. You need to get your head under the dash and there is a black cover that you need to take off...Basically it the the botom of the fuse box but you will need to play about to find out which relay it is exactly as they will all be lilac colour and they are not labelled.

I had this problem myself (before I thought of joining any forums) and it was a headache trying to pinpoint the problem.....trust me, if you can hear the relay and the button is lighting up, you need to bypass the connector block in the luggage compartment (its behind the carpet where the luggage compartment light is on the passenger side)

Yep, its down there. You need to get your head under the dash and there is a black cover that you need to take off...Basically it the the botom of the fuse box but you will need to play about to find out which relay it is exactly as they will all be lilac colour and they are not labelled.

I had this problem myself (before I thought of joining any forums) and it was a headache trying to pinpoint the problem.....trust me, if you can hear the relay and the button is lighting up, you need to bypass the connector block in the luggage compartment (its behind the carpet where the luggage compartment light is on the passenger side)


Hi Mate

I had this same problem but I fixed it today after reading this post :smile: ..Do you know what else is connected to that connector block as I have a problem with my fuel gauge and am wondering if it could be the same problem ...thanks if it wasn't for you I would have ripped the car apart..lol :banghead:

yip it was def the connector block ....thanks everyone for the help

"bypass the connector block in the luggage compartment"
Ive located the block but what exactly do i bypass?